I ought to drain you ought to drain he ought to drain we ought to drain you ought to drain they ought to drain
V-ing form
I ought to be draining you ought to be draining he ought to be draining we ought to be draining you ought to be draining they ought to be draining
Perfect
I ought to have drained you ought to have drained he ought to have drained we ought to have drained you ought to have drained they ought to have drained
V-ing perfect
I ought to have been draining you ought to have been draining he ought to have been draining we ought to have been draining you ought to have been draining they ought to have been draining
Negation
Simple form
I oughtn't to drain you oughtn't to drain he oughtn't to drain we oughtn't to drain you oughtn't to drain they oughtn't to drain
V-ing form
I oughtn't to be draining you oughtn't to be draining he oughtn't to be draining we oughtn't to be draining you oughtn't to be draining they oughtn't to be draining
Perfect
I oughtn't to have drained you oughtn't to have drained he oughtn't to have drained we oughtn't to have drained you oughtn't to have drained they oughtn't to have drained
V-ing perfect
I oughtn't to have been draining you oughtn't to have been draining he oughtn't to have been draining we oughtn't to have been draining you oughtn't to have been draining they oughtn't to have been draining
Interrogative form
Simple form
ought to I drain? ought to you drain? ought to he drain? ought to we drain? ought to you drain? ought to they drain?
V-ing form
ought to I be draining? ought to you be draining? ought to he be draining? ought to we be draining? ought to you be draining? ought to they be draining?
Perfect
ought to I have drained? ought to you have drained? ought to he have drained? ought to we have drained? ought to you have drained? ought to they have drained?
V-ing perfect
ought to I have been draining? ought to you have been draining? ought to he have been draining? ought to we have been draining? ought to you have been draining? ought to they have been draining?
Interro-negative form
Simple form
oughtn't I to drain? oughtn't you to drain? oughtn't he to drain? oughtn't we to drain? oughtn't you to drain? oughtn't they to drain?
V-ing form
oughtn't I to be draining? oughtn't you to be draining? oughtn't he to be draining? oughtn't we to be draining? oughtn't you to be draining? oughtn't they to be draining?
Perfect
oughtn't I to have drained? oughtn't you to have drained? oughtn't he to have drained? oughtn't we to have drained? oughtn't you to have drained? oughtn't they to have drained?
V-ing perfect
oughtn't I to have been draining? oughtn't you to have been draining? oughtn't he to have been draining? oughtn't we to have been draining? oughtn't you to have been draining? oughtn't they to have been draining?